Effect of X-ray and artificial aging on parchment Monia Vadrucci, Cristina Cicero, Claudia Mazzuca, Fulvio Mercuri, Mauro Missori, Noemi Orazi, Leonardo Severini and Ugo Zammit Eur. Phys. J. Plus, 136 8 (2021) 873 Published online: 24 August 2021 DOI: 10.1140/epjp/s13360-021-01766-5